32196171989 has 2 divisors, whose sum is σ = 32196171990. Its totient is φ = 32196171988.

The previous prime is 32196171971. The next prime is 32196172031. The reversal of 32196171989 is 98917169123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32190459889 + 5712100 = 179417^2 + 2390^2 .

It is an emirp because it is prime and its reverse (98917169123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32196171989 - 2²⁴ = 32179394773 is a prime.

It is a super-2 number, since 2×32196171989² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32196177989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16098085994 + 16098085995.

It is an arithmetic number, because the mean of its divisors is an integer number (16098085995).

Almost surely, 2^32196171989 is an apocalyptic number.

It is an amenable number.

32196171989 is a deficient number, since it is larger than the sum of its proper divisors (1).

32196171989 is an equidigital number, since it uses as much as digits as its factorization.

32196171989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1469664, while the sum is 56.

The spelling of 32196171989 in words is "thirty-two billion, one hundred ninety-six million, one hundred seventy-one thousand, nine hundred eighty-nine".